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How much play may the bearings have?
New deep groove ball bearings have approximately zero play. In the course of long use, this can increase in the range of hundredths of a millimeter. A small movement to the left and right can then be felt on the rim. If this movement becomes clearly visible (at more than about 0.2 mm), the bearings should be replaced by SON. But even if you continue to drive with bearing play, no damage occurs.